package com.wzj.yygh.common.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

@EnableCaching
@Configuration
public class RedisConfig {
    // 自定义redisTemplate
    @Bean
    @SuppressWarnings("all")
    public RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory redisConnectionFactory) {
        //我们为了开发方方便，一般使用<String, Object>
        RedisTemplate<String, Object> template = new RedisTemplate();

        // 进行序列化配置
        // 1. json序列化
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);

        // 2. String序列化

        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();

        // key采用String的方式序列化,value采用json格式
        template.setKeySerializer(stringRedisSerializer);
        template.setValueSerializer(new GenericJackson2JsonRedisSerializer());

        // hash的key也采用String的方式序列化，value采用json格式
        template.setHashKeySerializer(stringRedisSerializer);
        template.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());

        template.setConnectionFactory(redisConnectionFactory);
//        template.afterPropertiesSet();
        return template;
    }

    /**
     * 配置cacheManager
     *
     */
    @Bean(name = "cacheManager")
    public CacheManager cacheManager(LettuceConnectionFactory factory) {
        //默认的redisCahce配置，此处我们没用，而是自己配置
        //RedisCacheConfiguration.defaultCacheConfig();

        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
                // 设置缓存的默认过期时间
                .entryTtl(Duration.ofSeconds(600))
                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()))
                // 不缓存空值
//                .disableCachingNullValues()
                ;
        //根据redis缓存配置和reid连接工厂生成redis缓存管理器
        RedisCacheManager redisCacheManager = RedisCacheManager.builder(factory)
                .cacheDefaults(config)
//                .transactionAware()
                .build();
        return redisCacheManager;
    }


}
